Collapsible display stand



Dec. 1, 1931. F. A. WOOLLEY COLLAPSIBLE DISPLAY STAND Filed Aug. 4, 1930FI S F A. Waouzr Patented Dec. 1, 1931 UNITED STATES FRANK A. WOOLLEY,or S DNEY onro COLLAPSIBLE DISPLAY STAND Application filed August 4,1930. Serial No. 473,061.

or other loose parts about it, the joints being rigidly secured byrivets or by spot weld. The device when not in use is folded into thecompact form shown in Figure 5 convenient for transportation. Figure 1shows it erected for use as a display rack.

In the drawings:

Figure 1 is a perspective view of my rack extended into a three platformrack, one above another.

Figure 2 is a top view of one of the plat forms with auxiliary shelvesattached at the Figure 3 isa detached side view of theupper part of leg,trip rod, trip, frame, platform, catches and end of a cross-rod on theleg, supporting the platform.

Figure 4; is a detached side view showing part of a leg and frame, andthe special hinge, having on its inner side a projection or shelf forthe end of the opposite leg to rest on when rack is in its flatposition.

Figure 5 is a view of the rack collapsed.

In construction my device consists of a series of frames, A, A, A,mounted on pivoted adjustable legs, B, the lower frame carrying similarframes hinged on top of it and platforms C, one above the other. A setof detachable platforms D, is also provided, readily attachable anddetachable in case of need as shown in Figure 2.

Each frame is hinged at E, at one end, to

-" the top of the legs on that end, the other end 'rod H attached to thele ofjthe frame resting. free on top of thelegs opposite and beingfirmly secured in a curved catch F, extending; downward inward, and:upward, beingheldfirmly'in position inthe catch-F by the trip rod Gonendof the sup;- porting rod H, which supports the platforn on the frame.The weight of the frame and; platform; pressing down upon the topof,.'the

free leg, and upon the triprod, holds. the cross, bar Hgfirmly.inkposition in the catch locking the top to the leg rigidly.

The hinge E is a part of the frame A, extending upward above the frameas shown sothat the leg of another set can be pivoted above the body ofthe frame, the hinge having a projection K on its side a little higherthan the top of the frame on which the end of the opposite leg restswhen the rack is folded down flat. This is to keep the parts on a leveland prevent sagging of the same.

The automatic locking device consists of the curved catches F, F, on thebottom of the frame carrying the platform, the trip rod G,

and passing up, passes under the platform to the leg on the other-side,forming a support for the platform.

The catches F, F extending down from the bottom of the frame are curveddownward, inward and upward toward leg B. When the leg is supporting theframe and platform, the cross bar H, connecting it with the other leg atthis end, rests in the lowest part of the curve in the catch F, theweight of the frame and platform and the pressure 30 of the trip rod Gkeep the leg firmly in position preventing either forward or backwardmovement of the leg, holding it rigidly in attachment to the frame.

To demount the rack from an upright position as shown in Figures 1 and3, the operator simply takes hold of the front end of the frame havingthe catches thereon, lifts up until the catch passes around free andabove the cross bar H, and the legs, and the either in spaced relation,or collapsed, wherev frame of the top platform fold down onto the onebeneath, the operation being repeated for each tier above the bottomone. Actual tests show that the rack can be raised from a fiat, orhorizontal position to its upright position in three seconds, and can bedissembled into its horizontal position in the same short time,automatically locking its parts rigidly together as it is raised up.

What I claim is:

1. In a collapsible display rack, a series of platforms adapted to bemounted one above the other, each platform being provided withcollapsible legs, a pair of legs connecting successive platforms, and,means whereby the platforms may be maintained by the platforms rest oneupon the other'and form a single platform.

2. In a display rack having a series of platforms mounted one aboveanother, each platform supported on legs, the legs onone .side of eachplatform being permanently hinged thereto, and those on the other sidebeing detachably secured to each said platform by a catch, a trip-rod,and a trip, whereby the platforms may be maintained either in verticallyspaced relation, or collapsed to be adjacent one to another.

' FRANK A. WOOLLEY.

